Question

Alice added sodium chloride to water and stirred the water for several minutes. Alice is most likely trying to demonstrate that ionic compounds
1. are hard.
2. can dissolve.
3. are clear.
4. can melt.

Answer 1

Answer:

2. can dissolve.

Explanation:

Ionic compounds are compound that have a positive charge and a negative charge. The compound have cations and anions. Base on the question sodium chloride is an Ionic compound . The sodium produces the cation ions (Na+) while the chlorine produces the anions (Cl-). Generally, ionic compound has a strong bond.

Stirring sodium chloride in water, Alice is most likely to demonstrate the ability of ionic compound to dissolve in water.  Ionic compounds dissolves in polar solvent like water. The opposite charge present in the ionic compound are usually dissociated when they are immersed in water. The cations of sodium are surrounded by the negatively charged oxygen ion while the anions of chlorine are surrounded by the positively charged hydrogen ion.  The water molecules surround the ions available in the ionic compound thereby preventing it from recombining. All of the water molecules surround the ions of the ionic compound to dissolve it.

The picture above demonstrate how NaCl is dissolve in water.